can i used gm syncromesh in my tranny to replace the mtf fluid from honda. i have heard that the gm works alot beter lmk if anyone is using it and for how long and has there been any problems.

 

try it and see. there are arguments to both sides. basically it will come down to who is more convincing in this thread. search and you will see.

 

it will make little to no difference. If you're having transmission problems and an oil change seems to cure or help it, its only because your fluid was low or old. No amount or type of oil is going to cure or help mechanical damage in your trans. Keep it full of whatever you like and you should be fine. Don't believe in snake oil!

K

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ADVAN EG2 &raquo;</TD></TR><TR><TD CLASS="quote">try it and see. there are arguments to both sides. basically it will come down to who is more convincing in this thread. search and you will see.</TD></TR></TABLE> this is very true, it has been discussed time and time again. A lot of people notice a great difference when changing to GM sychromesh, and a lot of people notice honda MTF is better. I used both and notice no real difference, how ever it both of them did help lubricate my tranny better getting rid of my 3rd gear grind. It's personal preference. If i were to choose again I would go with the GM sychromesh

"First off Syncromesh has been tested by absofreakinglutely no one suprisingly. The best test that anyone here or bobistheoilguy.com forums can yeild is "it feels better after I put it in." Which is a very subjective opinion of the product, when I switch out my Honda MTF at 15k miles it does feel better, why? Because there is new fluid in there for the old fluid!
Here are the facts:
Viscosity:
Honda MTF: Slightly above the middle range 30wt motor oil at 11.26 cST
Syncromesh: Middle upper range of a 20wt motor oil at 9.08 cST

That is a huge difference between the two oils. Not to mention that the Syncromesh was designed for GM cars in mind, thus it wasn't designed to spin with the Honda RPM mindset. Those two alone keep me away from it.

But just to add onto this, EVERY SINGLE upper echelon Honda tranny mechanic that I've talked to has said use Honda MTF for daily driving. There's absolutely nothing better on the market for daily driving a Honda tranny. For track they start to vary, but this is because each has their preference for a THICKER gear oil. Something like Motul Gear300 or Redline MT-90.

Either way, I drive my car in the upper RPM range often enough to be scared if the GM Syncromesh can even protect at those RPM ranges. Sure it may feel better during the shifts due to real friction on the syncros, but for the price and reliability I will go with the Honda MTF every 15k. As the one issue that Honda MTF has is that it's shear happy, so you don't want to run it for more than the 30k mile interval.

"

 

Not to steer you completely off topic.. but look into the Amsoil Synchromesh.
This is what I fill my tranny with. Twice now.
https://www.amsoil.com/storefront/mtf.aspx

 

p.s. tranny fluid should be changed every 20-30 thousand miles, more frequently if you are reving it hard